> Would anyone know how to add a command to the `make test` procedure?
>
> The Makefile lacks a recipe with $(CC), so I don't see how things being
> compiled.

You're supposed to first build curl and libcurl in the root tree, then cd
tests and make should work there. It does for me at least, but I don't
cross-compile curl that often and using the test suite in a cross-compiled
environment needs hands-on too...